JPH0334606Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention communicates the bathtub and the heat exchanger of the water heater through a circulation path with a circulation pump, and circulates the water in the bathtub to the heat exchanger. The present invention relates to a bathtub water circulation/heating device that heats bathtub water, and in particular improves an adapter that connects a circulation path and the inside of a bathtub.

(b) Prior art This type of bathtub water circulation heating device has a water inlet in the adapter that supplies water returned to the bathtub, connects a hose to this water inlet, and operates a circulation pump to control the water in the bathtub. More and more items are being reused for washing, etc.

The above-mentioned bathtub water circulation heating device was developed in 1988.
As disclosed in Publication No. 167840, a hose connector having a water inlet is detachably provided at the water outlet of the adapter, and a hose is connected to the water inlet to reuse bath water, and the adapter's water outlet There are some known devices that double as a water inlet and rotate the adapter to use them as a water spout or a water inlet.

(c) Problems to be solved by the invention In the conventional device described above, the water spout and water inlet of the adapter were connected or used in combination, so hot water was discharged from the adapter back into the bathtub during refilling. There was a drawback that the direction was fixed and the temperature distribution inside the bathtub was poor.

This invention was made in view of the above-mentioned facts, and the purpose is to uniformly heat up the bathtub water and to easily switch between refilling and pouring water.

(d) Means for solving the problem In this invention, the bathtub and the heat exchanger of the water heater are connected through a circulation path having a circulation pump, and the water in the bathtub is circulated to the heat exchanger and heated. In a bathtub water circulation heating device, the adapter that connects the circulation path and the inside of the bathtub includes a cylindrical inner ring adapter attached to the bathtub, and a bottomed cylindrical outer ring adapter rotatably attached to the outer circumference of the inner ring adapter. The inner ring adapter is provided with a plurality of communication ports, the bottom wall of the outer ring adapter is provided with a water intake port through which water flowing to the heat exchanger flows into the adapter, and the peripheral wall of the outer ring adapter is provided with one water inlet. When the plurality of water inlets and the plurality of discharge ports corresponding to the plurality of communication ports of the inner ring adapter are provided, and the plurality of discharge ports of the outer ring adapter and the plurality of communication ports of the inner ring adapter match, the water is removed from the heat exchanger. When the water inlet of the outer ring adapter matches one of the plurality of communication ports of the inner ring adapter, the return water from the heat exchanger is supplied to the water inlet. This is a configuration designed to do this.

(E) Effect With this configuration, hot water can be discharged into the bathtub from multiple outlets during refilling, and not only can the bathtub water be boiled uniformly, but also when pouring water into a washing machine, etc. can be easily switched by simply rotating the outer ring adapter.

(f) Examples This invention will be explained below based on examples shown in the drawings.

In Figure 1, 1 is the can body of the water heater; can body 1
A water chamber 2 is provided inside the can body 1, and a combustion chamber 6 having a burner 3, a baffle tube 4, and a flue 5 is provided inside the can body 1. A coil-shaped heat exchanger 7 is disposed above the water chamber 2 . Further, the can body 1 is provided with a hot water supply port 8 and a water supply port 9 communicating with the water chamber 2 above and below the heat exchanger 7, and a hot water supply pipe 10 and a water supply pipe 11 are connected to these, respectively. The heat exchanger 7 communicates with the bathtub 15 via a circulation path 13 having a circulation pump 12 and an adapter 14 .

As shown in FIGS. 2 to 5, the adapter 14 includes a bathtub receiving metal fitting 16, a tightening member 17, rubber seal packings 18, 19, a fluororesin seal packing 20, and an inner ring adapter 21. ,
An outer ring adapter 22 is provided. The bathtub receiving fitting 16 has an outgoing connecting pipe 23 and a returning connecting pipe 24 connected to the circulation path 13, and has an outgoing connecting part 2 inside.
5 and a return side communication portion 26 are formed into sections.
The tightening member 17 is screwed onto the bathtub support fitting 16 from the inside of the bathtub 15, and is attached to the seal gaskets 18, 19, 2.
The bathtub 15 is attached to the bathtub 15 with the bathtub support fitting 16 through the
It is holding the wall 15A of. The inner ring adapter 21 has one end held between the wall 15A of the bathtub 15 and the flange 17A of the tightening member 17, and has a cylindrical peripheral wall 21A.
Three communication ports 27 are provided at 120° intervals. The outer ring adapter 22 has a cylindrical shape with a bottom, and is rotatably attached to the outer periphery of the inner ring adapter 21. A water intake port 29 having a strainer 28 is provided on the bottom wall 22A of the outer ring adapter 22. Three water spouts 3 are provided on the peripheral wall 22B of the outer ring adapter 22.
0 are provided at 120° intervals, and a water inlet 31 is provided between the two water spouts 30 and protrudes outward. A rubber elastic member 32 is disposed around the outer periphery of the water inlet 31 and applies elastic force toward the center of the water inlet 31 . Further, one end of a connecting pipe 33 is screwed into the water intake port 29, and the other end of the connecting pipe 33 is rotatably connected to the outgoing communication portion 25 of the bathtub receiving fitting 16 via an O-ring 34.

When reheating the bath, rotate the outer ring adapter 22 so that the water inlet 31 of the adapter 14 is at the bottom, and the three water spouts 30 of the outer ring adapter 22 and the three communication ports 27 of the inner ring adapter 21 will match. (See Figures 2 and 4). in this case,
When the circulation pump 12 and burner 3 are operated, the water in the bathtub 15 flows through the water intake port 29 - connecting pipe 33 - outgoing connection section 25 - outgoing connecting pipe 23 - circulation path 13 - heat exchanger 7 - circulation path 13 - return. The water flows in the order of the side connecting pipe 24 - the return side communication section 26 - the three communication ports 27 - the three water spouts 30, is heated by the hot water in the water chamber 2, and is discharged in three directions within the bathtub 15.

When reusing the water in the bathtub 15 for washing, etc., rotate the outer ring adapter 22 so that the water inlet 31 of the adapter 14 is on top, and the water inlet 31 of the outer ring adapter 22 and the communication port 27 at the top of the inner ring adapter 21 will be connected.
(See Figures 3 and 5). In this case, the hose band 3 is attached to the tip of the vinyl hose 35.
Connect the water injection hose joint 37 fixed in 6 to the water injection port 31.
When the O-ring 38 is inserted and the circulation pump 12 is operated, the water in the bathtub flows between the water intake port 29 - the connecting pipe 33 - the outgoing communication section 25 - the outgoing connecting pipe 23 - the circulation path 13 - the heat exchanger. The water flows in the following order: 7 - circulation path 13 - return side connection pipe 24 - return side communication section 26 - upper communication port 27 - water inlet 31, and is supplied to the washing machine etc. via the hose 35.

According to this embodiment, a water inlet 29 is provided on the bottom wall 22A of the bottomed cylindrical outer ring adapter (cap) 22, and a water inlet 31 and three water spouts 30 are provided on the peripheral wall 22B of the outer ring adapter 22. , bathtub 1
The water returned to the tank 5 is switched and supplied to the water inlet 31 and the three water spouts 30 by rotating the outer ring adapter 22, making it easy to switch between refilling and water injection. Hot water can be discharged from the spout 30 into the bathtub 15, the bathtub water can be uniformly boiled, and the temperature distribution in the bathtub can be improved.

(g) Effects of the invention This invention is structured as described above, so
When reheating, hot water is discharged into the bathtub from multiple outlets, allowing the bathtub water to be heated evenly.
Not only can you improve the temperature distribution in the bathtub, but also
When pouring water into a washing machine, etc., you can easily switch by simply rotating the outer ring adapter.
It is very easy to use.

In addition, as in the above-mentioned embodiment, by making the water inlet of the outer ring adapter protrude beyond the plurality of discharge ports and providing an elastic member around it, a hose for supplying bathtub water to a washing machine, etc. The joint can be easily attached to and removed from the protruding water inlet, and the hose joint is held by an elastic member during water injection to prevent it from coming off, further improving usability.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of a bathtub water circulation heating device showing an embodiment of this invention, Fig. 2 is a sectional view showing the adapter in use when recharging, and Fig. 3 is the same in use when pouring water. FIG. 4 is an explanatory diagram showing the positional relationship between the outer ring adapter and the inner ring adapter at the time of flushing, and FIG. 5 is an explanatory view showing the positional relationship at the time of water injection. 7... Heat exchanger, 12... Circulation pump, 13...
...circulation path, 14...adapter, 15...bathtub, 2
2... Outer ring adapter, 22A... Bottom wall, 22B...
...Peripheral wall, 29...Water inlet, 30...Water outlet, 31
...Water inlet.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Bathtub water circulation in which the bathtub and the heat exchanger of the water heater are connected through a circulation path having a circulation pump, and the water in the bathtub is circulated to the heat exchanger and heated. In the heating device, the adapter connecting the circulation path and the inside of the bathtub includes a cylindrical inner ring adapter attached to the bathtub, and a bottomed cylindrical outer ring adapter rotatably attached to the outer periphery of the inner ring adapter, The inner ring adapter is provided with a plurality of communication ports, and the bottom wall of the outer ring adapter is provided with a water intake port through which water flowing to the heat exchanger flows into the adapter.
A peripheral wall of the outer ring adapter is provided with one water inlet and a plurality of discharge ports corresponding to the plurality of communication ports of the inner ring adapter, and the plurality of discharge ports of the outer ring adapter and the plurality of communication ports of the inner ring adapter match. When the return water from the heat exchanger is supplied to the plurality of discharge ports, and when the water inlet of the outer ring adapter matches one of the plurality of communication ports of the inner ring adapter, the return water from the heat exchanger is supplied to the plurality of discharge ports. A bathtub water circulation heating device characterized by being configured to supply return water to a water inlet. (2) The water inlet of the outer ring adapter projects further outward than the plurality of discharge ports, and an elastic member is provided around the water inlet, which is the first claim of the utility model registration.
The bathtub water circulation heating device described in Section 1.